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goldcrab364Lv1
6 Oct 2020
Which of the following electronic configurations are not allowed for an atom? Choose all the correct answers. (a) 2s22p6 (b) 3s23p7 (c) 3d74s2 (d) 3d104s2 4p6 (e) 1s2 2s22d1 ?
Which of the following electronic configurations are not allowed for an atom? Choose all the correct answers. (a) 2s22p6 (b) 3s23p7 (c) 3d74s2 (d) 3d104s2 4p6 (e) 1s2 2s22d1 ?
Kottherva SreevidyaLv10
19 Oct 2020
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